Published at Saturday, January 18th 2020. by Aliz Schmitz in Tonneau Cover.
Although they are small pieces of hardware, they will catch the eye if there;s one that doesn;t match. It;s the old truth that no one notices when things are right, but they always seem to see when things are wrong.
The pivot hinge is made for overlay doors. One is mounted on the top and the other on the bottom with portions of each bent over and mounted to the frame and door resulting in a concealed hinge. Perhaps the most popular hinge is the spring mounted hinge. Fitted with a small spring inside this door hinge allows the door to close on its own, automatically.
Every morning you probably open and close at least five doors before you leave t o go to work. You close the bathroom door to jump in the shower. You open the medicine cabinet to get your toothbrush and toothpaste. You reach for your cereal to grab a quick bite to eat and the front door swings shut behind you before you leave. All of these doors and more would not work without a door hinge or two. And what would the world be like without this oh so important invention? Well picture going into and out of your house through a hole in the roof because you are no strong enough o move a large rock or slab of wood everyday in front of the entrance.
Over a glass of wine with friends, an architect friend of mine and I started talking about hinges. And yes, I know you are thinking what an exciting conversation that must have been. But when you think about it, hinges are everywhere and affect all aspects of our lives. In fact, you probably have at least five hinged items on your person or in your purse/attaché/backpack/briefcase. You might have less, but I think you;ll be surprised as you read on.
In existence for thousands of years, hinges have come a long way to finally reach their status of today. Early versions involved large boulders and pivots, later evolving into wooden planks and animal hide. Regardless of how humble their beginnings may have been, getting through life without them today would definitely be much more difficult.
Hinges come in a seemingly endless variety of styles, sizes and shapes. But if you know the basics you will able to find the right ones for your project in a flash. Don"t worry about whether the hinge is labeled left or right handed. All this means is what side of the door you are hanging the hinges on, but all you need to do is flip them over and you can use them on the other side. You may also be unsure of what size of hinge you need. As long as it is proportional to the size of the door you neednt worry. Hinges are extremely strong. In fact they are generally eight to ten times stronger than the job they are called on to do.
These simple ones were called pivot hinges and consisted of a post that fits into a ring or a socket. If you put a post on the top and bottom of each door and a socket in the floor and top of the doorframe, you have a simple door that swings open both ways. Other mountings of them stop the door at a certain point. An example of an ancient pivot hinged door with a stop is a drawbridge. Two massive pivot hinges were mounted on the bottom outside corners of the castle; chains raised the bridge into a door position which was then barred from the inside to hold it in place.
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